Similarities to Asimov's Nightfall story?

Rating: Null/10 (10 June 2004)

First of all, I want to say I did like this movie. The photography was excellent, the acting was pretty good and the atmosphere of the movie well developed. I was scared, too! However, the moment the movie finished I immediately thought "this is a Nightfall rip-off!". Of course, the setting of the movie is way different than the setting of the book: alien world vs our civilization in the present, Nightfall vs a virus, and the characters don't match, of course. But the overall plot is similar:
-It all starts by a massive tragedy that causes people to go mad
-After the thing started, a group of survivors tries to find others
-In both the movie and the book, the initial goal of this group is to reach a place where supposedly those who survived are all going
-The militaries in the movie think they are a bastion of order in the chaos and that it is up to them to get civilization going again, in
time. In the book, recall the Fire Patrol episode?
-The scene where they are on a highway and in the distance a city is burning is very very similar to a scene described in the book
Don't you think it's too many coincidences? Maybe the story in the movie was inspired by Asimov's?